文章基本信息

标题：Anatomical distinctions of the Mesozoic lingulide brachiopods
本地全文：下载
作者：GERTRUDA BIERMT ; CHRISTIAN C. EMIG
期刊名称：Acta Palaeontologica Polonica
印刷版ISSN：0567-7920
电子版ISSN：1732-2421
出版年度：1993
卷号：38
期号：1-2
页码：1-20
语种：English
出版社：Institute of Paleobiology PAS
摘要：The long held view that Lingula represents an extremely bradytelic lineage is questioned. Examination of Mesozoic lingulides has shown that they significantly differ from their Recent relatives Lingula and Glottidia in having longer lophophoral cavities,shorter ventral canals,better developed posterior adductor muscles,and less acute umbones. Morphological characters of the shell interior are needed to identify members of the Lingulidae,not solely external shell characteristics. The apparent evolutionary tendency towards a reduction of the volume of the lophophoralcavity contradics the traditional view that the 'living fossil' Lingula has survived without significant morphological change since the Paleozoic. Actually the today living lingulide genera probably arose in the early Cenozoic. A newinarticulate brachiopod genus,Lingularia is introduced,with three new species,Middle Triassic L. siberica,Middle Jurassic L. sirnilis,and Cretaceous L. smirnome.
其他摘要：Badania dobrze zachowanych okazow mezozoicznych lingul wkazaly,ze te roinia,sie zasadniczo od wspokzesnych rodzajow Ligula i Glottidia objeto- .+cia,jamy lofoforalnej,dlugoscia,kanalow wentralnego plaszcza,wyksztalceniem nieparzystego miesnia tylnego addu
关键词：lingulides;Brachiopoda;shell morphology;taxonomy;evoldtion;Paleozoic-Recent.